Google's Gemini 3.5 Flash Hits General Availability and Becomes the Default Gemini Model

Google Blog·high signal

Gemini 3.5 Flash is now generally available and stable for production across the Gemini API (Google AI Studio, Android Studio), Gemini Enterprise, and Google Antigravity, and is now the default model in the Gemini app and AI Mode in Search globally. Google positions it as frontier-level intelligence at ~4x the speed of comparable models, priced at $1.50/$9 per 1M tokens with a 1M-token context window and 76.2% on Terminal-Bench 2.1 — beating the larger Gemini 3.1 Pro on coding and agents. It frames Google's bet that its next AI wave is about agents, not chatbots.